NO/TG-7 THERMAL GOGGLES OPERATOR S MANUAL NIGHT OPTICS USA

Transcription

1 NO/TG-7 NIGHT OPTICS USA THERMAL GOGGLES OPERATOR S MANUAL The NO/TG-7 Goggle/Binocular is a rugged, lightweight, and powerful InfraRed device that can be hand held or mounted on a headgear. By using the 2x internal digital zoom and adding an optional a-focal germanium optical magnification lens, the NO/TG-7 provides up to 9x long-range thermal surveillance and acquisition.

2 TABLE OF CONTENTS Revision Notices 2 Table of Contents 3 Warnings and Cautions 4 Chapter 1: Introduction 1-1. Description What is Infrared? Theory of operation 5 Chapter 2: System Components 2-1.Standard Configuration Optional Accessories 7 Chapter 3: System Controls 3-1. Power Source Activation (IR/pull Position) Reset/OFF-ON-IR/pull Position Focus Adjustment White-Hot/Black-Hot button switch X Digital Zoom Head Mount Assembly with Brow Pads 9 Chapter 4: Receipt, deactivation, cleaning and storing the system 4-1. Service upon receipt of material 4-2. Deactivation Battery Removal Cleaning Outer Unit Cleaning Optics Purging Storage Inspection 11 Chapter 5: System Operations 5-1. Display Graphics Operation with External Power Operation using Video Output Cable 13 Chapter 6: Specifications 6-1. Detector Performance Physical Features Additional Features 14 Chapter 7: Operator Preventive Maintenance Checks and Troubleshooting 7-1. Preventive Maintenance Checks Discrepancies, Probable Cause and Suggested Actions 16 Appendix A: Electronic Block Diagram 17

3 CHAPTER 6. SYSTEM SPECIFICATIONS 6-1. Detector FPA Format: 160 x 120 Type and Material: Amorphous Silicon Microbolometer Cooling: Uncooled Spectral Response Sensitivity: 7 14 μm NETD (Thermal Sensitivity): < 50mK Refresh Rate: Real-time 30Hz 6-2. Performance Detect Stationary Man: 475+ meters Optics: 25mm, 1.5X, f1.0 Magnification (standard): 1.5X Magnification (with 2X digital zoom): 3.0X Continuous Operation (AA Batteries): 4 hours 6-3. Physical Features Diopter Adjustment: -6 to +2 Eye Relief: 17mm Weight: 17.1 oz (485 g) Dimensions: 6in x 6in x 4in Power Requirement: (3) CR123 batteries Lens: High Grade Germanium Output Video output NTSC Composite Eyepiece Adjustment: Focus & Interpupillary distance 6-4. Additional Features Polarity Control: Display: Temperature Reading: Colorization: Video Output: Video display Black Hot/White Hot 640 X 480 pixels Yes Gray Scale Color available on request NTSC (STD) PAL (on request) Battery level indicator (lower right)

4 WARNINGS AND CAUTIONS CAUTION (Section I): Do not remove the housing. There are no user serviceable parts inside. Refer all servicing to Night Optics USA, Inc. WARNING (para. 3-1): Ensure that the switch is in the OFF position before installing or removing batteries, and connecting or disconnecting to any external power source. WARNING (para 3-1): Ensure that the input power does not exceed 24VDC: use a power converter if needed. WARNING (para 4-1): Breaking the seal on the Back Plate (see b above) invalidates the warranty. DO NOT BREAK THE SEAL. WARNING (para 4-6): Purging is not user level maintenance. Contact Night Optics or your Support Maintenance activity. CAUTION (para 4-7): Do not store the NO/TG-7 with the batteries installed. WARNING (para 5-2): Do not connect the NO/TG-7 to any external power source while the unit is turned on. EXPORT RESTRICTIONS: Export of Thermal devices is subject to United States Export rules and regulations. Valid export licenses may be issued by the U.S. Department of Commerce or the U.S. Department of State, Directorate of Trade Controls, in accordance with the International Traffic in Arms Regulations (ITAR), Title 22, Code of Federal Regulations Consult Night Optics USA, Inc. for additional information regarding export requirements.

5 SECTION I: OPERATOR INSTRUCTIONS CAUTION DO NOT REMOVE THE HOUSING. THERE ARE NO USER SERVICEABLE PARTS INSIDE. REFER ALL SERVICING TO NIGHT OPTICS USA, INC. Chapter 1. Introduction 1-1. Description: The NO/TG-7 Thermal Goggle/Binocular is a rugged, lightweight and powerful Infrared optic that can be hand-held, helmet mounted, or mounted on a head harness. By using the 2X internal digital zoom and adding an optional afocal germanium optical lens, the NO/TG-7 provides potent 6X long-range thermal surveillance and acquisition. The sensitive uncooled thermal detector and high resolution display provides crisp white hot or black hot images regardless of ambient conditions. A colorized capability is available at user request. While night vision technology relies on amplification of ambient light or assisting illumination, thermal devices are completely passive, sensing extremely minute temperature differentials. The NO/TG-7 Thermal Goggle therefore acquires targets in daylight and complete darkness while seeing through obscurants such as smoke and haze which often hinder image intensification devices. Designed for law enforcement, military and commercial use, the NO/TG-7 is ideal for reconnaissance and surveillance, perimeter security, wildlife observation and control, locating oil spills, and geo-thermal event monitoring in addition to a wide variety of other applications What is Infrared? Infrared energy, often referred to as infrared or IR, is electromagnetic radiation that travels in a straight line through space, the same as visible light. Although infrared energy shares some of the properties of visible light, its different wavelength has several unique characteristics. For instance, materials that are opaque to visible light may be transparent to infrared, and vice versa. An example of this difference is the ability of light intensification devices to see through glass and plastic while thermal detection devices cannot. Unlike visible light, given off by ordinary objects only at very high temperatures (e.g. light bulbs), long-wavelength infrared (7-14 mm) is emitted by all objects at ordinary temperatures. This means that infrared energy surrounds us all the time, even in the dark. Different objects emit varying amounts of infrared energy depending on the temperature of the object. The NO/TG-7 is designed to sense differing contrasts of long-wavelength infrared energy and display the scene in real time for the user Theory of Operation: The NO/TG-7 combines a highly sensitive, 30μm 160x120 uncooled, Amorphous Silicon Microbolometer detector yielding a real-time 30Hz frame rate with a 640 X 480 LED display integrated and sealed in a modified PVS-7 housing. With thermal sensitivity of less than 50mK, the sensor has a 7-14μm spectral response. The 1 x8 field of view provided by the 25mm lens facilitates detection of human activity to 475 meters. Additional integrated features include focus adjustment, white-hot/black-hot polarity options, contrast and brightness adjustment, 2x digital zoom, hand-held battery operation, NTSC video-out capability and external power function. The sealed system has a nitrogen purge screw in the rear cover assembly.

6 CHAPTER 4. RECEIPT, DEACTIVATION, CLEANING AND STORING THE SYSTEM (CONT) 4-7. Storage: Replace lens caps, as required. Wrap the lanyard around the NO/TG-7 and store in the carrying case. For extended storage, remove all batteries. CAUTION Do not store the NO/TG-7 with the batteries installed Inspection: Conduct an inventory of the case and its contents and report missing or damaged items for replacement. Once the components are clean, dry and inventoried, close the case and place it in secure storage. The Mil Spec storage case is highly recommended.

7 Chapter 2. System Components 2-1. Standard configuration The NO/TG-7 ships with the following standard components: NO/TG-7 Thermal Goggle System (fig. 1) (1) Soft Carrying Case (fig. 2a) (1) 3v CR123 Batteries (fig.3a) (3) Demist Shield (fig. 3b) (2) Shoulder Strap (fig. 3c) (1) Lens Tissue (fig.3e) (1) Eye-Cups (fig. 1b) (2) Lens Cap (fig. 1a) (1) Lanyard (fig. 1c) (1) Operator s Manual (not pictured) (1) Video Output Cable (VOC) (Silver) (fig. 4a) (1) External Power Cable (EPC) (Cigarette Lighter Adapter) (fig.4b) (1) Integrated Power Video Connection (IPVC) (Yellow) (fig. 4c) (1)

8 CHAPTER 2. SYSTEM COMPONENTS (contd) (c) (b) (b) (a) fig. 1 fig. 2 (c) (a) EPC (e) VOC (b) (c) (b) (a) (d) (a) (c) IPVC w/cable fig. 3 fig. 4 Optional Accessories: Headmount Assembly (fig. 2b) with Brow Pads 3X Magnifier Lens (not shown) Mil Spec Carrying Case (not shown)

9 CHAPTER 3. SYSTEM CONTROLS The NO/TG-7 is very easy to operate: See paragraphs 3-1 to 3-6 below for detailed instructions. Contact Night Optics USA Inc. at (714) for additional information or assistance Power source: The electronic circuit is powered by three (3) replaceable CR123 batteries, or external power (6-24VDC). Rechargeable batteries can be used but will not charge while an external power source is used. Batteries can remain in the system while in operation using external power. For installation in darkness, be aware that the positive (+) end (nipple end) of each battery must be inserted first into the battery compartment. Operation using an external (6-24VDC) power source can be accomplished without removing the batteries. WARNING Ensure that the switch is in the OFF position before installing or removing batteries, and connecting or disconnecting to any external power source. WARNING Ensure that the input power does not exceed 24VDC: use a power converter if needed Activation (IR/pull position) (fig.5a): To turn the unit on, turn the switch one click clockwise. Pull the switch out (switch is partially spring-loaded) and rotate one additional click clockwise to the IR position. The Night Optics logo will appear for a few seconds in the display. The active thermal image will then be displayed Reset/Off-ON-IR/pull Power Switch (fig.5a): When the switch is in the OFF position, the NO/TG-7 is not energized Focus adjustment (fig. 6d): First, carefully rotate the objective lens clockwise or counterclockwise to sharpen focus. The user should be able to focus from a minimum of three feet (3 ft) to a maximum of infinity. Next, focus each eyepiece, in accordance with your specific optical correction. Close one eye and rotate the eyepiece to adjust for the sharpest image of the temp reading in the upper right hand corner. Close the other eye and repeat the process. Finally, slide either or both of the eyepieces towards or away from your nose so that one distinct image is viewed. fig.5 CAUTION Do not touch the lens face (a)

10 CHAPTER 3: SYSTEM CONTROLS 3-5. White-Hot/Black-Hot button switch (fig. 6a): The NO/TG-7 always starts in the white-hot mode. The NO/TG-7 s white hot/black hot polarity is selected by using the bottom spring-loaded button on the front-right side of the unit. Briefly press the bottom button to switch between WHITE-HOT and BLACK-HOT polarities. Latch (b) (c) (e) (a) (d) fig X Digital Zoom (fig. 6b): The 2X switch is a digital zoom that switches the unit from 1.5X to 3X when the top button is depressed. When changing from 1.5X to 3X the objective focus will need to be adjusted slightly for optimal performance. The unit always starts in the 1.5X mode Head Mount Assembly with Brow Pads (fig. 2c, fig. 3d): Adjustable head assembly that secures the NO/TG-7 to the operator s head providing hands-free operation.

11 CHAPTER 4. RECEIPT, DEACTIVATION, CLEANING AND STORING THE SYSTEM 4-1. Service upon receipt of material a. Inspect the equipment for possible damage incurred during shipment. If the equipment has been damaged, contact Night Optics USA, Inc. immediately. b. One of the bottom screws on the Back Plate is sealed. Breaking the seal invalidates the warranty. Ensure the seal is intact before using. WARNING Breaking the seal on the Back Plate (see b above) invalidates the warranty. DO NOT BREAK THE SEAL. c. Check the equipment against the packing list to ensure the shipment is complete. Report all discrepancies immediately to Night Optics USA, Inc. d. The NO/TG-7 Thermal Goggle should be ready for use upon receipt and insertion of batteries as prescribed in Chapter Deactivation: Turn off the system by rotating the switch two clicks counterclockwise (CCW) to the OFF position. View through the eyepiece to confirm the system is indeed off. Verify that the LED Indicator is not illuminated, either RED or GREEN Battery removal (fig. 6e): Unscrew the battery compartment hatch, remove all three CR123 batteries, and store in the carrying case or bag. Close the battery compartment. If disposal of the batteries is required, please follow your organization s hazardous materiel disposal procedures Cleaning outer unit Use a moistened clean cloth to wipe the outside of the NO/TG-7, EXCEPT FOR THE OPTICAL SURFACES. A very dilute detergent solution is permissible. Dry with a soft clean cloth, or allow unit to air-dry before storing Cleaning optics Clean lens surfaces only when visibly dirty. Avoid touching any exposed lens faces as skin acid from fingerprints can damage coatings and lenses. blowing air across the surface to remove any sand or abrasive particles, clean any residue on the optical surfaces with a soft cotton cloth and mild neutral soap diluted with lukewarm distilled water (1 part soap to 100 parts water), followed by reagent-grade isopropyl alcohol swab. Remove dust gently with an alcohol swab. Note: Avoid swabs that incorporate plastic stems Purging: The housing of the NO/TG-7 goggle is filled with dry nitrogen and sealed to prevent dirt and moisture from degrading performance during use. WARNING Purging is not user level maintenance. Contact Night Optics or your Support Maintenance activity.

12 CHAPTER 5. SYSTEM OPERATIONS The NO/TG -7 is designed to be used as a hand-held, helmet-mounted or headmounted thermal system that runs on battery or external power for extended operations. It is also unique in allowing the user to stream active video to a laptop, video display or other device while being used. Because the NO/TG-7 does not have menu options, it is very user friendly Display Graphics There are three indicators seen while viewing the display with the screen active: temperature, crosshair and low battery. Temperature: Located in the upper right corner of the display screen. Displays the temperature of the scene that is in the center field of view dependent on the distance between the viewer and the object being viewed. It is not the actual temperature of an object at its location. This can be used to help locate an object not readily viewable. Battery: Visible in the lower right hand corner of the display screen. Indicates the approximate level of remaining battery power Operation with External Power There are 2 button switches located on the right side of the TG-7 goggles. They control the 2x digital magnification, black hot/white hot polarity, brightness and contrast. Polarity/Contrast Control: Lower Button (fig. 6a) With one button push the scene changes from hot objects appearing white against a darker background to hot objects appearing dark against a lighter (white) background. Contrast is activated by holding the button down until a red, slowly blinking LED is seen in the left eyepiece at the 9 o clock position. While the LED is blinking use either button to increase or decrease the level of contrast between Black/white Digital 2x Magnification/Display Brightness: Upper Button (fig. 6b) One button push will magnify the scene by 2 power (2x). Display brightness is activated by holding the button down until a red, rapidly blinking LED is seen in the left eyepiece at the 9 o clock position. Adjust the display brightness by while the LED is blinking. Note: Control will revert back to Polarity/Digital Magnification if no adjustments are made for approximately 2 seconds Operation with External Power The NO/TG-7 can be powered for extended periods of time by the external power cable attached to a source between 6-24 VDC. The internal batteries need not be removed during this operation. Before attaching the EPC (fig. 5b) to an active external power source - e.g., cigarette lighter, vehicle power port, or power converter/inverter - ensure that the NO/TG-7 is turned completely off!!! Sequence for connecting external power: 1. Turn power switch on NO/TG-7 to OFF position. 2. Connect the IPVC to the external IPVC jack (fig. 6c); observe proper alignment of the plug and jack. 3. Connect the EPC to the 12V DC IN port on the IPVC. 4. Connect the EPC to the external power source port on the IPVC. 5. Turn on the NO/TG-7. WARNING Do not connect the NO/TG-7 to any external power source while the unit is turned ON. Sequence for disconnecting external power: Reverse the connection sequence to properly disconnect external power.

13 CHAPTER 5. SYSTEM OPERATIONS (CONT) 5-4. Operation using Video Output Cable (VOC) One of the unique features of the NO/TG-7 is its ability to stream live video to a laptop, camcorder, or video display without interfering with operations. This mode of operation gives the operator the advantage of providing live thermal images to others via the web or of retaining those images for future use. Sequence for connecting video output: 1. Turn power switch on NO/TG-7 to the OFF position. 2. Connect the IPVC to the external IPVC jack (fig. 6c); observe proper alignment of the plug and jack. 3. Connect the VOC to the VIDEO IN port on the IPVC. 4. Connect the VOC to the device (laptop, camcorder, video display, etc). 5. Turn on the NO/TG-7. Sequence for disconnecting video output: Reverse the connection sequence to properly disconnect video output. IPVC w/cable EPC VOC

14 CHAPTER 7. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND TROUBLESHOOTING 7-1. Preventive Maintenance Checks: The table of Preventive Maintenance Checks provides inspection criteria to ensure proper operator-level maintenance of the NO/TG-7 system and required evacuation for additional maintenance services. Seq Interval Item to Check Procedure Optical surfaces External surfaces Battery compartment Diopter Adjustment Rings Eyecups Interpupillary Adjustment Object lens focus. RESET/OFF-ON- IR/PULL Switch Knob Inspect all lenses for dirt, fingerprint residue, chips or cracks. If necessary, clean and dry lenses as prescribed in 4-5 above. Inspect for cracks or damages. Scratches and gouges are OK if operation is not affected. Ensure battery cap, battery cap retainer and o-ring are present. Rotate diopter rings to ensure eyepieces move freely and are not loose. Range is almost ½ turn. Inspect for: dirt, cracked or torn cups; bent, broken or improperly fitting eyecup ring. If necessary, clean with water. Slide each eyepiece back and forth to check for binding or looseness. Rotate objective lens to ensure free movement (range is approximately 1/3 turn). Remove any batteries and turn the switch knob from RESET/off to ON to IR/PULL. Each position should have a definite stopping point. Inspect for broken or missing knob. Evacuate to Maintenance if: Scratches or cracks hinder vision with goggle turned on, or if cracks are present. Cracked or damaged. Cap or o-ring is missing or contacts are damaged or corroded. Binding, not moving freely or too loose. Inability to achieve or maintain interpupillary adjustment. Not free moving. Latch Inspect for damage. Damaged. Neck cord and Lens Cap Viewed image. Lenses Inspect for cracked, torn, or missing lens cap. Inspect cord for cut, damage, or frayed ends. Re-tie ends if necessary. With fresh batteries inserted, turn ON as per 3-2. Inspect for indication of moisture inside housing. Switch has no definite stopping points or knob broken or missing. Any indication of moisture inside housing. The operator of the NO/TG-7 is restricted to the simple cleaning of the exterior body and optical surfaces; exchange of batteries; and replacement of the objective lens-cap, eyepiece and neck lanyard. Refer all other discrepancies to support maintenance. If the equipment malfunction is not listed or actions listed do not correct the fault, notify the next higher echelon of maintenance or Night Optics USA, Inc.

15 Chapter 7. Operator Preventive Maintenance Checks and Troubleshooting (cont d) 7-2. Following is a list of possible discrepancies, their possible causes, and suggested operator procedures to correct them: Discrepancy Probable Cause(s) Corrective Action Unit will not turn on Discharged batteries. Replace and discard old batteries. Unit will not turn on Batteries installed Reinstall with proper backwards. orientation. No display through eyepiece Objective lens-cap still on. Remove. Partial scene Mud or debris on Remove/clean per cleaning objective lens. procedure. Foggy or fuzzy picture Dirty or greasy eyepiece. Clean with wet & dry lens paper. Recommend using Demist Shield. Scene out of focus Incorrect lens/diopter Refocus objective, then setting(s). diopter settings. Undefined scene Moisture in system. Return to maintenance facility for nitrogen purging. Recommend using Demist Shield. Optics hard to turn, or grinding Dirty threads. Evacuate to maintenance.

16 APPENDIX A: ELECTRONIC BLOCKDIAGRAM ZOOM Video out LC D P OLAR IT Y AS 3620 LCD driver D+ D- LC D OF F ON LC D ON THE R MAL +3V E xternal P ower Power S upply Low Battery